/*
* jQuery UI Effects Pulsate 1.8.7
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Effects/Pulsate
*
* Depends:
*	jquery.effects.core.js
*/
(function ($, undefined) {
    $.effects.pulsate = function (o) {
        return this.queue(function () {
            var elem = $(this),
			mode = $.effects.setMode(elem, o.options.mode || 'show');
            times = ((o.options.times || 5) * 2) - 1;
            duration = o.duration ? o.duration / 2 : $.fx.speeds._default / 2,
			isVisible = elem.is(':visible'),
			animateTo = 0;

            if (!isVisible) {
                elem.css('opacity', 0).show();
                animateTo = 1;
            }

            if ((mode == 'hide' && isVisible) || (mode == 'show' && !isVisible)) {
                times--;
            }

            for (var i = 0; i < times; i++) {
                elem.animate({ opacity: animateTo }, duration, o.options.easing);
                animateTo = (animateTo + 1) % 2;
            }

            elem.animate({ opacity: animateTo }, duration, o.options.easing, function () {
                if (animateTo == 0) {
                    elem.hide();
                }
                (o.callback && o.callback.apply(this, arguments));
            });

            elem
			.queue('fx', function () { elem.dequeue(); })
			.dequeue();
        });
    };
})(jQuery);